The Bently Nevada 330878-91-05 3300 XL 50 mm Proximitor Sensor is a key component of the 3300 XL 50 mm Transducer System, functioning as the Proximitor Sensor. This system, renowned for its extensive linear range of 27.9 mm, is specifically engineered for critical differential expansion (DE) and rotor expansion (RX) measurements in large steam turbine generators. 

The exceptional range of the PROXIMITOR SENSOR 330878-91-05 Bently Nevada enables it to accurately monitor the growth differential between the turbine rotor and stator casing, which is vital for operational safety and machine integrity.

The application of the 3300 SERIES 330878-91-05 Bently Nevada typically involves two transducer configurations for DE measurement, observing a collar or ramp near the thrust bearing. Its long linear range supports mounting two transducers on the same side of a collar for redundancy or in a complementary arrangement on opposite sides to effectively double the measurable DE range. The selection of the optimal mounting method for the Bently Nevada 330878-91-05 depends on the target size, expected rotor axial movement, and the specific DE target available on the machine.

System compatibility is a significant feature of the 330878-91-05 Proximitor Sensor Bently Nevada. It is designed to physically and electrically replace all standard 7200 50 mm systems, allowing for straightforward upgrades without requiring changes to the monitor configuration due to its consistent 0.394 V/mm output. However, when upgrading, it is crucial to replace the entire transducer system—probe, extension cable, and the BENTLY NEVADA 3300 XL 50 mm Transducer System 330878-91-05 itself—to ensure system integrity and performance.